diff --git a/lib/broccoli/broccoli-handlebars.js b/lib/broccoli/broccoli-handlebars.js
index 5d4b86c42c81..269cfed8160c 100644
--- a/lib/broccoli/broccoli-handlebars.js
+++ b/lib/broccoli/broccoli-handlebars.js
@@ -22,6 +22,7 @@ class HandlebarReplace extends BroccoliCacheWriter {
 
   build() {
     this.listFiles().forEach((filePath) => {
+      filePath = path.normalize(filePath);
       const destPath = filePath.replace(this.inputPaths[0], this.outputPath);
       const content = fs.readFileSync(filePath, 'utf-8');
       const template = Handlebars.compile(content);